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The best way to understand what a hook does is to look at where it occurs in the source code.
do_action( "hook_name" )
apply_filters( "hook_name", "what_to_filter" )
.Remember, this hook may occur in more than one file. Moreover, the hook's context may change from version to version.
This hook occurs 2 times in this file.
Line | Code |
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255 |
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256 | /** |
257 | * Filters the terms query arguments. |
258 | * |
259 | * @since 3.1.0 |
260 | * |
261 | * @param array $args An array of get_terms() arguments. |
262 | * @param array $taxonomies An array of taxonomies. |
263 | */ |
264 | $this->query_vars = apply_filters( 'get_terms_args', $query, $taxonomies ); |
265 |
|
266 | /** |
267 | * Fires after term query vars have been parsed. |
268 | * |
269 | * @since 4.6.0 |
270 | * |
271 | * @param WP_Term_Query $this Current instance of WP_Term_Query. |
272 | */ |
273 | do_action( 'parse_term_query', $this ); |
Line | Code |
348 |
|
349 | /** |
350 | * Filters the terms query arguments. |
351 | * |
352 | * @since 3.1.0 |
353 | * |
354 | * @param array $args An array of get_terms() arguments. |
355 | * @param array $taxonomies An array of taxonomies. |
356 | */ |
357 | $args = apply_filters( 'get_terms_args', $args, $taxonomies ); |
358 |
|
359 | // Avoid the query if the queried parent/child_of term has no descendants. |
360 | $child_of = $args['child_of']; |
361 | $parent = $args['parent']; |
362 |
|
363 | if ( $child_of ) { |
364 | $_parent = $child_of; |
365 | } elseif ( $parent ) { |
366 | $_parent = $parent; |